| 摘要 |
The invention relates to a programmable controller for use especially in a larger automation installation and to a method for operating a programmable controller (S1..Sn). The programmable controllers (S1..Sn) are linked to a central computer (R) of the automation system via a network (2). All of the user data (3), user programmes (4), configuration data (5) and the operating systems (6) of the programmable controllers (S1..Sn) are stored on the central computer. Only working copies of these data are stored in the programmable controller (S1..Sn). In particular, in the event that the components of the programmable controller (S1..Sn) fail, the user data (3), user programmes (4), configuration data (5) and/or the operating system (6) are loaded from the central computer (R) via the network (2). This enables the operating system to be updated very simply and centrally. The current versions of the user programmes are also centrally available and are therefore easy to archive. Finally, the necessary data can also be loaded automatically at any time in the event of a malfunction.
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